Resilient support for railway-tracks.



H.' H. TUNIS.l RBSILIENT SUPPORT FORBAILWAY TRACKS.

APPLICATION FILED SBPT.19,'1908.

IN VEN TOR.

A TTORNE YS HOWARD H. TUNIS, OF BALTIMORE, MARYLAND, ASSIGNOR TOAMERICAN MONORAIL COMPANY, A CORPORATION OF SOUTH DAKOTA.

RESILIENT SUPPORT FOR RAILWAY-TRACKS.

To all whom it may concern:

Be it known that I, HOWARD H. TUNIS, citizen of the United States ofAmerica, residing at the city of Baltimore, State of Maryland, haveinvented certain new and useful Improvements in Resilient Supports forRailway-Tracks, of which the following is a specication.

This invention relates to supports for traction rails and particularlyto such supports of a type which may be used to advantage in a monorailsystem.

The device in which my invention is embodied and in connection withwhich it has been reduced to practice consists of a continuous resilientsupport for a rail. Concrete blocks placed at intervals receive the railand the blocks are embedded in suitable ballasting, as rubble, crushedstone, or the like. This material fills the spaces between and beneaththe blocks and a resilient binder, as pitch, coal tar, asphalt, or theequivalent, is melted and poured on the ballast. The pitch flows betweenthe particles of stone and engages the `faces of the concrete blocks andwhen it hardens forms with the blocks and ballast a continuous bodywhich is sufficiently elastic to allow the track to settle appreciablyunder the weight of the train, without destroying the bond between theintegral parts of the rail foundation. The concrete blocks arepreferably formed with a plurality of flat pedestals on which the railrests, and between these pedestals is one having inclined upper surfacesto receive the fastening means, as hereinafter described. Tension rodsembedded in the body of each block extend transversely of the rail underthe pedestals which support the rail, and bolts embedded in the materialproject from the blocks adjacent the rail. These bolts are provided attheir' extremities with members overlying the lower fianges of the rail,whereby the rail is held in position. As shown, these members consist ofplates resting at one end on the inclined surface of the middle pedestalwhich is designed to conform to the angle of the plates, and at theother end on the flange. The plates are pierced near the center' and thebolts extend through the holes. Nuts on the ends of the bolts hold theplates in position. These features may be used either in combination orseparately within the scope of my invention.

Specification of Letters Patent.

Application filed September 19, 1908.

Patented Jan. 24,1911.

Serial No. 453,859.

The accompanying drawings illustrate an embodiment of my invent-ion.

Figure l is a transverse cross-section of the road bed of a monorailsystem, showing a concrete block in elevation and the ballast insection. Fig. 2 is a fragmentary vertical section on the line 2-2 ofFig. l.

The body of the road bed is formed of ballast l composed of crushedstone, rubble or other suitable material. The elongated blocks 2 areplaced thereon transversely to the rail and at intervals substantiallyequal to those ordinarily occurring between wooden ties. The blocks areembedded in the rubble to a point near their upper surface, as shown,and melted pitch, tar, or other congealable liquid which will harden toform a suitable resilient binder 3 is poured on the ballast, so that itflows between the particles thereof, engaging the surfaces of theconcrete blocks. The binder, with the blocks and the ballast, forms acontinuous bed which has sufficient elasticity to allow the track tosettle appreciably under the weight of the train, without destroying thebond between the integral parts of the rail foundation.

The blocks of concrete are provided on their upper surfaces with fiatwooden pedestals 4 and 5 near the longitudinal center of the blocks andspaced laterally thereon at sufcient distances to allow for theconstruction to be described. Between the flat pedestals t and 5 is apedestal 6 having the outer portions of its upper surface inclineddownward and out-ward at 14 at a slight angle, possibly 9.50, to thehorizontal. The fail 7 is placed on the blocks resting on the pedestals4 and 5 near their centers. The pedestal G is of a slightly less heightthan those on each side of it, so that it is out of Contact with therail.

Directly beneath the pedestals 4rand 5, extending transversely to thetrack and embedded in the concrete, are tension rods S which are adaptedto take up the stress of tension in the lower portion of the blocktransmitted to it from the pedestal directly above. Bolts 9 and 10spaced a distance longitudinally of the blocks somewhat in excess of thewidth of the lower flange 11 of the rail, are placed in or near thetransverse centers of the blocks and embedded therein, inclined outwardfrom the rail at a slight angle to the vertical. These bolts projectfrom the upper surface of the middle ped estal 6 on each side of therail flange 11. Fastening plates 12, shown as of oblong outline piercedat their center, are placed with one end resting on the lower flange l1of the rail and their otherV extremity on the inclined portion l/l ofthe pedestal 6, the projecting extremity of a bolt passing through theaperture in each plate. to place the plates under the desired tension,whereby the rail is pressed against the block and secured against motionrelatively thereto.

Having thus described my invention, what I claim and desire to secure byLetters Patent is:

l. A supporting block for a traction rail composed of concrete having apedestal t0 receive the rail, and a second pedestal of less height thanthe first having an inclined upper surface, fastening plates resting atone Nuts l5 serveV an inclined face of the second pedestal, and v meansfor securing the plates to the block.

2. A supporting block for a traction rail,

a pedestal on the block to support the rail, the block having inclinedsurfaces adjacent the rail, bolts projecting from the block between theinclined surfaces and the rail, plates resting at one extremity on thelower flange of the rail and at the other extremity engaging theinclined surfaces, each apertured to receive the projecting extremity ofthe bolt, and means for securing each plate to a bolt whereby it ispressed against the flange and the surface of the block.

Signed by me at Baltimore,y Maryland, this 14th day of September 1908.

HOWARD H. TUNIS. lVitnesses EDWARD L. BAsH, Lal-l. LATHAM.

